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/* $Id: tstGlobalConfig.cpp $ */
/** @file
* Ring-3 Management program for the GCFGM mock-up.
*/
/*
* Copyright (C) 2007-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <VBox/vmm/vmm.h>
#include <iprt/errcore.h>
#include <iprt/assert.h>
#include <iprt/initterm.h>
#include <iprt/stream.h>
#include <iprt/string.h>
/**
* Prints the usage and returns 1.
* @return 1
*/
static int Usage(void)
{
RTPrintf("usage: tstGlobalConfig <value-name> [new value]\n");
return 1;
}
/**
* Entry point.
*/
extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
{
RT_NOREF1(envp);
RTR3InitExe(argc, &argv, 0);
/*
* Parse args, building the request as we do so.
*/
if (argc <= 1)
return Usage();
if (argc > 3)
{
RTPrintf("syntax error: too many arguments\n");
Usage();
return 1;
}
VMMR0OPERATION enmOp = VMMR0_DO_GCFGM_QUERY_VALUE;
GCFGMVALUEREQ Req;
memset(&Req, 0, sizeof(Req));
Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
Req.Hdr.cbReq = sizeof(Req);
/* arg[1] = szName */
size_t cch = strlen(argv[1]);
if (cch < 2 || argv[1][0] != '/')
{
RTPrintf("syntax error: malformed name '%s'\n", argv[1]);
return 1;
}
if (cch >= sizeof(Req.szName))
{
RTPrintf("syntax error: the name '%s' is too long. (max %zu chars)\n", argv[1], sizeof(Req.szName) - 1);
return 1;
}
memcpy(&Req.szName[0], argv[1], cch + 1);
/* argv[2] = u64SetValue; optional */
if (argc == 3)
{
char *pszNext = NULL;
int rc = RTStrToUInt64Ex(argv[2], &pszNext, 0, &Req.u64Value);
if (RT_FAILURE(rc) || *pszNext)
{
RTPrintf("syntax error: '%s' didn't convert successfully to a number. (%Rrc,'%s')\n", argv[2], rc, pszNext);
return 1;
}
enmOp = VMMR0_DO_GCFGM_SET_VALUE;
}
/*
* Open the session, load ring-0 and issue the request.
*/
PSUPDRVSESSION pSession;
int rc = SUPR3Init(&pSession);
if (RT_FAILURE(rc))
{
RTPrintf("tstGlobalConfig: SUPR3Init -> %Rrc\n", rc);
return 1;
}
rc = SUPR3LoadVMM("./VMMR0.r0", NULL /*pErrInfo*/);
if (RT_SUCCESS(rc))
{
Req.pSession = pSession;
rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, enmOp, 0, &Req.Hdr);
if (RT_SUCCESS(rc))
{
if (enmOp == VMMR0_DO_GCFGM_QUERY_VALUE)
RTPrintf("%s = %RU64 (%#RX64)\n", Req.szName, Req.u64Value, Req.u64Value);
else
RTPrintf("Successfully set %s = %RU64 (%#RX64)\n", Req.szName, Req.u64Value, Req.u64Value);
}
else if (enmOp == VMMR0_DO_GCFGM_QUERY_VALUE)
RTPrintf("error: Failed to query '%s', rc=%Rrc\n", Req.szName, rc);
else
RTPrintf("error: Failed to set '%s' to %RU64, rc=%Rrc\n", Req.szName, Req.u64Value, rc);
}
SUPR3Term(false /*fForced*/);
return RT_FAILURE(rc) ? 1 : 0;
}
#if !defined(VBOX_WITH_HARDENING) || !defined(RT_OS_WINDOWS)
/**
* Main entry point.
*/
int main(int argc, char **argv, char **envp)
{
return TrustedMain(argc, argv, envp);
}
#endif
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